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31026 = 235171
BaseRepresentation
bin111100100110010
31120120010
413210302
51443101
6355350
7156312
oct74462
946503
1031026
1121346
1215b56
1311178
14b442
1592d6
hex7932

31026 has 8 divisors (see below), whose sum is σ = 62064. Its totient is φ = 10340.

The previous prime is 31019. The next prime is 31033. The reversal of 31026 is 62013.

31026 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (31019) and next prime (31033).

It is a sphenic number, since it is the product of 3 distinct primes.

31026 is an admirable number.

It is a super-2 number, since 2×310262 = 1925225352, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 13.

It is a nialpdrome in base 14.

It is an unprimeable number.

31026 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2580 + ... + 2591.

It is an arithmetic number, because the mean of its divisors is an integer number (7758).

231026 is an apocalyptic number.

31026 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31032).

31026 is a wasteful number, since it uses less digits than its factorization.

31026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5176.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 31026 is about 176.1419881800. The cubic root of 31026 is about 31.4225864243.

Adding to 31026 its reverse (62013), we get a palindrome (93039).

The spelling of 31026 in words is "thirty-one thousand, twenty-six".

Divisors: 1 2 3 6 5171 10342 15513 31026